Patents
Patents for G10L 19 - Speech or audio signal analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis (31,960)
09/2005
09/07/2005CN1664930A Pitch cycle search range setting device and pitch cycle search device
09/07/2005CN1664929A Pitch cycle search range setting device and pitch cycle search device
09/07/2005CN1664928A Pitch cycle search range setting device and pitch cycle search device
09/07/2005CN1664927A Method and apparatus for solving sound breaking problem of sound effect recording playback equipment
09/07/2005CN1664768A Method of configuring a printer for vacation periods
09/07/2005CN1218501C Method for preventing quantizer from saturating during data communication of voice band and its system
09/07/2005CN1218323C System and method for displaying information on screen of user interface device under control of digital audio playback device
09/07/2005CN1218296C Pitch cycle search range setting device and pitch cycle search device
09/07/2005CN1218295C Method and system for speech frame error concealment in speech decoding
09/06/2005US6941267 Speech data compression/expansion apparatus and method
09/06/2005US6941263 Frequency domain postfiltering for quality enhancement of coded speech
09/06/2005US6940987 Techniques for improving audio clarity and intelligibility at reduced bit rates over a digital network
09/06/2005US6940967 Multirate speech codecs
09/06/2005US6940900 Data compression, control program for controlling the data compression
09/01/2005WO2005081232A1 Communication device, signal encoding/decoding method
09/01/2005WO2005081231A1 Coding model selection
09/01/2005WO2005081230A1 Classification of audio signals
09/01/2005WO2005081229A1 Audio encoder and audio decoder
09/01/2005WO2005081228A1 Method for restoring partials of a sound signal
09/01/2005WO2004038924A8 Method and apparatus for fast celp parameter mapping
09/01/2005US20050192812 Method and apparatus for encoding and decoding pause information
09/01/2005US20050192800 Noise feedback coding system and method for providing generalized noise shaping within a simple filter structure
09/01/2005US20050192799 Lossless audio decoding/encoding method, medium, and apparatus
09/01/2005US20050192798 Classification of audio signals
09/01/2005US20050192797 Coding model selection
09/01/2005US20050192796 Audio codec system and audio signal encoding method using the same
09/01/2005US20050192686 Semiconductor memory card, playback apparatus, recording apparatus, playback method, recording method, and computer-readable recording medium
09/01/2005US20050190837 Encoded data outputting apparatus and method
09/01/2005US20050190833 Encoded data outputting apparatus and method
09/01/2005DE102004007191B3 Audiocodierung Audio coding
09/01/2005CA2557000A1 Communication device, signal encoding/decoding method
09/01/2005CA2555768A1 Coding model selection
09/01/2005CA2555352A1 Classification of audio signals
08/2005
08/31/2005EP1569223A1 Secure and efficient generation of digital watermarks
08/31/2005EP1569204A1 Parameter optimisation for encoding audio signals
08/31/2005EP1569203A2 Lossless audio decoding/encoding method and apparatus
08/31/2005EP1568014A1 Spectrogram reconstruction by means of a codebook
08/31/2005EP1568012A1 Audio coding
08/31/2005EP1568011A1 Method for separating a sound frame into sinusoidal components and residual noise
08/31/2005EP1568010A1 Coding an audio signal
08/31/2005EP1338004B8 Method and device for the generation or decoding of a scalable data stream with provision for a bit-store, encoder and scalable encoder
08/31/2005EP1334485B1 Speech codec and method for generating a vector codebook and encoding/decoding speech signals
08/31/2005EP1203369B1 Sinusoidal coding
08/31/2005EP0995191B1 Mixing audio streams
08/31/2005EP0956559B1 A method and device for interfacing variable-rate sampled digital audio information to a string of uniform-sized blocks, and a unitary medium so produced by a write-interfacing
08/31/2005EP0624275B2 Method and system for the arrangement of vocoder data for the masking of transmission channel induced errors
08/31/2005CN1663259A Information terminal and information communication system
08/31/2005CN1663229A System and method for queuing and presenting audio messages
08/31/2005CN1662960A Audio coding system using characteristics of a decoded signal to adapt synthesized spectral components
08/31/2005CN1662959A Methods and systems for compression of stored audio
08/31/2005CN1662958A Audio coding system using spectral hole filling
08/31/2005CN1661924A Audio codec system and audio signal encoding method using the same
08/31/2005CN1217531C Device for receiving digital radio singals
08/31/2005CN1217502C Digital signal coder, decoder and coding method decoding method
08/31/2005CN1217317C Encoding audio signals
08/31/2005CN1217313C Method for recognizing voice modified tone in system of recognizing voice of the Chinese language
08/30/2005US6937988 Methods and systems for prefilling a buffer in streaming data applications
08/30/2005US6937979 Coding based on spectral content of a speech signal
08/25/2005WO2005078707A1 A transcoder and method of transcoding therefore
08/25/2005WO2005078706A1 Methods and devices for low-frequency emphasis during audio compression based on acelp/tcx
08/25/2005WO2005078705A1 Audio encoding
08/25/2005WO2005078704A1 Audio coding
08/25/2005WO2005078703A1 Method and device for quantizing a data signal
08/25/2005WO2005078600A1 Method and apparatus for transforming a digital audio signal and for inversely transforming a transformed digital audio signal
08/25/2005WO2005069491A3 Method of filtering binary data
08/25/2005US20050187764 Bit error concealment methods for speech coding
08/25/2005US20050187762 Speech decoder, speech decoding method, program and storage media
08/25/2005US20050187760 Audio coding
08/25/2005US20050187759 System for bandwidth extension of narrow-band speech
08/25/2005US20050186541 Interactive learning system method for infants toddlers and young children
08/25/2005US20050185850 Adaptive hybrid transform for signal analysis and synthesis
08/25/2005US20050185793 System and method for secured scrambling of audio flux
08/25/2005CA2556797A1 Methods and devices for low-frequency emphasis during audio compression based on acelp/tcx
08/24/2005EP1566048A1 Noise matching for echo cancellers
08/24/2005CN1659855A Encoding and decoding of watermarks in independent channels
08/24/2005CN1659824A Multimedia server with simple adaptation to dynamic network loss conditions
08/24/2005CN1659785A Method and system for multi-rate lattice vector quantization of a signal
08/24/2005CN1659652A Re-embedding of watermarks in multimedia signals
08/24/2005CN1659626A A method and device for frequency-selective pitch enhancement of synthesized speech
08/24/2005CN1659625A Method and device for efficient frame erasure concealment in linear predictive based speech codecs
08/24/2005CN1659579A Method and apparatus to detect watermark that are resistant to resizing, rotation and translation
08/24/2005CN1658282A Method for speech coding, method for speech decoding and their apparatuses
08/24/2005CN1216368C Method and system for extension of frequency range of voice signal
08/24/2005CN1216367C Data processing device
08/24/2005CN1216366C Sound signal coding based on sine model
08/24/2005CN1216365C Multi-channel voice signal encoding and decoding
08/23/2005US6934679 Error resilient scalable audio coding
08/23/2005US6934677 Quantization matrices based on critical band pattern information for digital audio wherein quantization bands differ from critical bands
08/23/2005US6934676 Method and system for inter-channel signal redundancy removal in perceptual audio coding
08/23/2005US6934650 Noise signal analysis apparatus, noise signal synthesis apparatus, noise signal analysis method and noise signal synthesis method
08/18/2005WO2005076260A1 Efficient coding of digital media spectral data using wide-sense perceptual similarity
08/18/2005WO2005036533A3 Systems and methods for sound compression
08/18/2005US20050182996 Channel signal concealment in multi-channel audio systems
08/18/2005US20050182623 Efficient transmission of communication traffic
08/18/2005US20050182622 Information processing device and information processing method
08/18/2005US20050182621 Automatic speech recognition channel normalization
08/18/2005US20050180599 Methods and tangible objects employing textured machine readable data
08/18/2005US20050180586 Method, medium, and apparatus for converting audio data
08/18/2005US20050180579 Late reverberation-based synthesis of auditory scenes
08/18/2005US20050180405 Sub-packet insertion for packet loss compensation in voice over IP networks